Amla,
aonla or Indian gooseberry (Emblica officinalis) is an indigenous fruit
to the Indian subcontinent.
Owing to hardy nature, suitability to various waste lands, high
productivity/unit area (15-20tons/ha), nutritive and therapeutic value,
amla is becoming more and more commercially important with every passing
year.

Amla fruits are a very rich source of vitamin C having an
ascorbic acid content varying from 0.9 to 1.3 per cent.This is the second
highest among all the cultivated fruits.This fruit is highly valued among indigenous medicines.It is acrid, cooling, refrigerant, diuretic and laxative.Dried fruits have been reported to be useful in haemorrhages,
diarrhea, dysentery, anaemia,jaundice, dyspepsia and cough.Trifala and Chyavanprashare well known indigenous medicines in Ayurvedicsystem using amla fruits.

Foliage and fruits of amla

Murabba (preserve) is prepared from amla fruits by keeping them
in sugar syryp.This is a
very popular amla preparation in India and
hundreds of tons are sold every year.The fruits are also used to prepare hairwash and hair oil which
are said to be beneficial for growth and appearance of hair. Besides
fruits, leaves, bark and even seeds are being used for various purposes.

Its cultivation is common in India,
particularly in Pratapgarh, Rai Bareilly, Varanasi,
Jaunpur, Sultanpur, Kanpur,
Agra
and Mathura
districts of Uttar Pradesh.
Its intensive plantation is being done in the salt affected areas of the
state of Uttar Pradesh, including ravenous areas in
Agra, Mathura, Etawah, Fatehpur
and semiarid tract of Bundelkhand.Amla cultivation is also spreading rapidly in the semiarid
regions of Maharashtra, Gujarat, Rajasthan, Andhra Pradesh, Karnataka,
Tamil Nadu, Aravali ranges in Haryana and Kandi area in
Punjab and HimachalPradesh.

Climate and soil

Amla is a subtropical plant and prefers dry
subtropical climate.Even
mild frost during the winter months can be injurious to tree.Though it can bear temperature upto 46 C during summer months,
but the temperature should not be high at the time of flowering.It affects fruit setting and may sometime lead to complete
unfruitfulness, if there are hot and dry winds too.Ample humidity is essential for initiation of fruit growth of
dormant fruitlets during July –August.Dry spells result in heavy dropping and delay in initiation of
fruit growth.

Since amla is a hardy plant, it can be successfully grown in
variable soil conditions.
The deep root system, reduced foliage, dormancy of fertilized fruitlets
(April- June) makes amla an ideal plant for arid and semiarid
conditions. Aonla can be cultivated in marginal soils –slightly acidic
to saline/sodic (pH
6.5-9.5) conditions.Heavy
soils or high water table areas are not suited for cultivation.

Varieties

There are 3 main varieties of amla viz., Banarasi,
Francis (Hathijhool) and Chakaiya.These varieties have their own merits and demerits. Banarasi, an
early-maturing amla, is a shy-bearing,prone to heavy dropping of fruits with poor shelf –life.Francis suffers from severe incidence offruit necrosis.
Chakaiya fruits are fibrous, smaller in size and also have a tendency to
bear heavy crop in alternate years.Other varieties identified and released for commercial
cultivation during the recent years are:

Fruits of banarasi amla

Kanchan
(NA4): A seedling selection from Chakaiya, it is heavy and regular
bearer (7.7female flowers/ branchlet), with medium-sized fruits, having
higher fibre content.It is
preferred by industriefor pulp extraction and manufacturing of various
products.This has been
adopted very well in the semiarid regions of Gujarat and
Maharashtra.

NA6: A
seedling selection from Chakaiya, it is prolific and heavy bearer
(10.8female flowers / branchlet).It is ideal for preserve and candy, owing to low fibre content.

NA7: A
seedling selection of Francis, it is precocious, prolific and
regular-bearer (9.7female flowers/ branchlet).This is an ideal variety for preparation of products and has a
great promise.

Besides above varieties, Anand 1, Anand 2 and Anand 3 have been
selected as promising strains at the
GujaratAgricultural
University.

Wild
Himalayan amla: There also exists a quite distinct strain of amla,
which grows wild in the mid-hill regions of the
Western Himalayas.This amla bears smaller fruits and is a very heavy cropper.A very good quality of this strain is that it is much cold hardy
in comparison to the commercial amla.The wild Himalayan amla can therefore be successfully used to
extend amla cultivation to colder areas.

A separate chapter on this strain under the heading “Wild
Himalayan amla” has been given here.

Propagation and rootstock

Amla has are raised through seeds as well as
inarching.However, there
is prolonged juvenility and wide variability in seedlings.On the other hand only limited number of scion shoots is
available for inarching owing to upright tree habit.

It can also be propagated through patch/ modified ring budding in
north India during mid
May to September with 60-100%sucess.Besides, Veneer grafting also has successfully been attempted.Considering the efficiency and requirement of single bud, budding
is an ideal method of propagation.

Six months to one year-old seedlings obtained from ordinary
seedlings amla trees are being used as rootstock. Mature amla fruits are
collected during January-February and their seeds are extracted after
drying.Seeds are sown in
raised beds April onwards and these are transplanted in separate bed for
subsequent budding.

Cultivation

Planting

Grafted or budded amla plants are planted 7-10 m
apart during July–August or February.Pits of 1-1.25 m size are dug 2 months prior to planting.In each pit 3-4 basketsof well rotten farmyard manure and 1 kg neem cake or 500 g bone
meal are mixed with soil and filled.In sodic soils, 5-8 kg gypsum along with 20kg sand is
incorporated.Filled pits
are irrigated thoroughly if there is no rain.Hedge row planting is also being tried keeping line–to–line
distance of 8m, while plant-to-plant distance is reduced to 4-5m.Under adverse soil conditions, it is advisable to grow the
seedlings directly in the field pits or raise these in suitable
containers and transplant at permanent site, and perform budding (in
situ) subsequently.Amla
scion shoots can be safely stored for 5-7 days with ample success.

Amla is a heavy bearer tree

Since self incompatibility appears to be a problem with amla
varieties, 2 varieties in alternate rows need to be planted.

Training
and pruning

Amla plant should be encouraged to develop a medium headed tree.The main branches should be allowed to appear at a height of
0.75-1m above the ground level.Plants should be trained to modified central leader system.Two to four branches with wide crotch angle, appearing in the
opposite directions should be encouraged in early years.The unwanted branches in are pinched off during March-April.In the subsequent years, 4-6 branches should be allowed to
develop.Regular pruning of
a bearing aonla tree is not required.As per growth habit, shedding of all determinate shoots
encourages new growth in coming season.However, dead, infested, broken, weak or overlapping branches
should be removed regularly.

Manuring
and fertilization

The dose of manures and fertilizers depends upon soil fertility, age
of plant and production.A
dose of 10 kg farmyard manure, 100 g N, 50 g P and 100 g K should be
given to one years old plants of aonla.This dose should be increased yearly up to 10 years and
thereafter a constant dose should be given.Full dose of farmyard manure and P and half of N and K should be
given in tree basin during January- February.The remaining half should be applied in August. In sodic soils,
100-500 g of B and zinc sulphate should also be incorporated along with
fertilizers as per tree age and vigour.

Irrigation

Established amla orchards in general do not require irrigation
particularly in normal soils.No irrigation is required during rainy and winter season.However, irrigation at 15-20 days interval is desirable in dry
summer particularly during early years of orchard establishment under
wasteland conditions.
Brackish water should not be used for irrigation.In the bearing plantation, first irrigation should be given just
after manure and fertilizer application (January/ February).Irrigation should be avoided during flowering (mid-March-mid
April) period.Irrigation
at 10-15 days intervals should be given particularly in the salt
affected soils.

Basin system of irrigation is well suited for amla.The initial information obtained with drip irrigation has shown
promising response.
Alternate drip irrigation with 60 CPE is appropriate with water saving
of 40-45%.In water
scarcity areas, pitcher irrigation can also be successfully utilized.

Mulching

Mulching with organic wastes is very effective tool for
establishment of amla orchards in sodic and ravenous areas.Paddy straw, sugarcane trash and farmyard manure have shown
better response.Mulching
with organic wastes over a number of years shall be helpful in improving
the organic matter content, infiltration rate, and restricting the
upward movement or soluble salts and thus escaping their toxicity menace
in salt-affected soils.

Intercropping

Amla being a deep rooted, deciduous tree with sparse foliages, is an
ideal plant amicable for 2 or 3 tier cropping system.Fruits, vegetables, flowers and a few medicinal and aromatic
plants are well suited for intercropping in aonla orchards

Harvesting and post harvest
management

Change in seed color from creamy white to brown is
an indication of fruit maturity.Fully developed fruits are harvested.Delay in harvesting results in heavy dropping of fruits
particularly in Banarasi and Francis.It also adversely affects the following years bearing. Individual
fruits are plucked by climbing on the tree with the help of pegged
bamboo or ladder.
Harvesting should be done in early or in the late hours of the day.

A
budded/grafted aonla tree starts bearing third year onwards after
planting, whereas a seedlings tree may take 6-8 years.Vegetatively propagated plants attain full bearing within 10-12
years and may continue to bear for 60-75 years of age under well managed
conditions. An aonla tree may bear 1-300 kg tree, giving 15-20 tons/ha.

Amla fruits are graded
into 3 grades.Large sized,
sound fruits are mostly utilized for preserve and candy; small sized for
chyavanprash and trifala and blemished fruits for powder and shampoo
making.Aonla fruits can be
stored for 6-9 days at ambient temperature.However, with a salt solution it can be stored up to 75 days.

Physiological disorder

Necrosis, a physiological disorder, has been
observed in aonla fruits.
Francis variety is highly susceptible followed by Banarasi incidence
initiates with browning of mesocarp which extends towards the epicarp
resulting into brownish black appearance of flesh.

CHYAVANPRASH

It is an ages old Ayurvedic
preparation made from amla fruits. It is prescribed as a
restorative tonic which also develops resistance in body against various
diseases.

Chyavanprash and amla hair oil another very
popular amla product

The legend is that this preparation was specially formulated by the
Ashwinikumars, the physicians to gods in heaven, for sage Chyavan who
had grown very frail and old after years of penance. There was
drastic transformation of the sage after taking this tonic. The
sage was looking so young and youthful that even his wife failed to
recognize him when he reached home after years of absence from home.

This tonic has become very popular not in India, but outside India too.
Therefore the demand for amla fruits has now outgrown its production.
So amla cultivation is becoming very profitable.